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Gold Bug Cipher

Tool to decrypt/encrypt like in Gold-Bug automatically. The short story entitled The Gold-Bug from Edgar Allan Poe presents a substitution cipher.

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Gold Bug Cipher -

Tag(s) : Substitution Cipher

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Gold Bug Cipher

Gold Bug Decoder




Gold Bug Encoder




Tool to decrypt/encrypt like in Gold-Bug automatically. The short story entitled The Gold-Bug from Edgar Allan Poe presents a substitution cipher.

Answers to Questions

How to encrypt using Gold-Bug cipher?

Gold bug code encryption uses a mono alphabetical substitution. Each letter corresponds to a symbol according to the conversion table

A5B2C-DE8F1G3H4I6
J,K7L0M9N*OP.Q$R(
S)T;U?VW]X¢Y:Z[

Example: DCODE is crypted †-‡†8

How to decrypt Gold-Bug cipher?

Goldbug cipher decryption requires to know the alphabet used to cipher for undo the monoalphabetical substitution.

Example: 3‡0† is decrypted GOLD

How to recognize Gold-Bug ciphertext?

The ciphered message contains the characters † or ‡ (dagger and double dagger) and the 8 appears often. The index of coincidence is similar to the language of the plain text.

Any reference to an insect/bug and especially a golden beetle is a clue.

Any mention of Edgar Allan Poe's Extraordinary Stories is also a clue.

What are the variants of the Gold-Bug cipher?

Edgar Allan Poe suggests other alphabets with the same symbols, especially one in a few word on secret writing here (link)

When Gold-Bug have been invented?

Le story has been published in june 1843

Source code

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Thanks to your feedback and relevant comments, dCode has developped the best Gold Bug Cipher tool, so feel free to write! Thank you !


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